Sorting a Two-Dimensional Array

Folks, I've searched the archives over for this, but I can't find a response that's really pertinent to what I'm doing. I'm new at multi-dimensional arrays, so please bear with me. :) I've got an array like this: $array[1][id] $array[1][rating] $array[2][id] $array[2][rating] $array[3][id] $array[3][rating] I'd like to sort by rating. So if the data looked like this: $array[1][501] $array[1][5] $array[2][467] $array[2][1] $array[3][468] $array[3][3] I'd like to sort by rating, for it to end up looking like this: $array[2][467] $array[2][1] $array[3][468] $array[3][3] $array[1][501] $array[1][5] You'll note that it's now in order of 1, 3, 5, instead of 5, 1, 3. In SQL, this would be wicked easy. I could just do "ORDER BY rating". With two-dimensional arrays, of course, it's not so easy. I'm aware that I should be using usort, but I don't know how to go about applying it. I was hoping for something like "usort($array,rating,asc)", but Momma always called me a dreamer. :) Thanks in advance for any help you can offer, fellow PHPers. Best, Waldo Waldo L. Jaquith < waldo@munkandphyber.com > < 804/979.2980 > // Munk & Phyber // 110B Second Street NE // Charlottesville, VA 22902